<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Closure</title>
</head>

<body>
    <script>
        // getSalary(12000,2000)
        // getSalary(15000,3000)
        // getSalary(15000,4000)

        function makeSalary(base) {
            return function (performance) {
                return base + performance
            }
        }

        let salaryLevel1 = makeSalary(12000);
        let salaryLevel2 = makeSalary(15000);


        console.log(salaryLevel1(2000));
        console.log(salaryLevel2(3000));
    </script>
</body>

</html>